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In Europe, the increase in using magnesium as a structural lightweight material is being led by the Volkswagen Group of companies, with the material also being used by other leading manufacturers including Daimler, BMW, Ford and Jaguar. Presently, around 14 kg of magnesium is used in the VW Passat and Golf platforms. Both of these platforms use magnesium transmission casings cast in AZ91D, offering a 20%-25% weight saving over aluminum. Other applications include instrument panels, intake manifolds, cylinder head covers, inner boot lid sections and steering components which utilize the more ductile AM50A and AM60B alloys. In North America, the use of magnesium for auto applications is more advanced. The GM full sized Savana and Express vans use up to 26kg of magnesium alloy.